Dot com bubble was optimistic. AI bubble is pessimistic. People thought their lives would improve due to improved communication and efficiency. The internet was seen as a positive thing. The dot com bubble was more about monetizing it, but that wasn't the zwitgeist. With AI people don't see much benefits and are aware it's purpose is to take their jobs.
With the dot com bubble, it was mainly mom and pop investors that were worst off, but many companies died. With AI bubble it seems like it's the companies that will do worst when it crashes. Obviously, it affects everyone, but this skews more to the 1%. So hopefully it's a lesson on greed. Unlikely though.